Charles friedeihci



C. FRIEDERIU.

LUBRIGATUR EUR STEAM ENGmEs.-

No. 336,045.A` Patented Fab.. 9, i886,

f 4 dif.,

)fable/axes CHARLES FRIEDERIcI, or CHICAGO, iLnjijxoisigffijg LuBRlcAi-'oa For:

sTEA ivi ENG l N Es,

SPCIFICATIN forming part. of Letters Patent No. 336,045, datediebrna'iy9:21886;

' To alwhom'it may concern: Y

` Be itknown that I, CrIaRLEs FRIEDERICI,

l a citizen of the United States, residing in Chicago, in the county of Cooky and State of Illinois, have invented a new and useful I mprove-4 ment in Lubricators for Steam-Cylinders,of which the following is a specification.

This invention relates to devices' operated by hand for lubricating steam-cylinders with grease or other thick soft semi-liquid lubricants which requireto be forced outnnder pressure from the can or vessel, and which, owing to their non-liquid condition, cannot be -readily ut into the lubricant vessel lor can v contains the grease is provided with a pist-on or plunger, the stem of which is made in the form of a screw and operated by a revolving nut journaled in the head of the can or cylin- `der, so that the piston may be operated up and down in the can or cylinder without revolving therein, and thus becoming' worn and and the lubricant-vessel.

the operation of the lubricator thereby rendered uncertain. An automatic check-valve havingra stem and guides on each end thereof permits-the lubricant to enter the steam pipe or cylinder when the lubricant-piston is operated, and prevents the steam from entering the lubricant vessel or cylinder. T o prevent the heat from the steam pipe materially affecting the lubricant in the vessel, a considerabler length of pipe intervenes between the,4 valve My invention consists in the novel devices and novel combinations of parts or devices herein shown and described, and more particularly pointed out in the claims.

In the accompanying drawings, which form a part of this specification, and in which similarlletters Nof reference indicate like parts, Figure 1 is a vertical central section of a de- Applicatinn tiled December 18, ISS. Serial No. 186,047. (Xo model.

enlarged section of thlefrcvolvingf' nut, and Figs. 3 and .Jr are crossfs'ections V"on lines `3 3 and 44 of Fig. l.

In said drawings, Amay representa steampipe lea\ding to a steam, chest or cylinder, A. `Bis a lubricant vessel ,or ,cylinder having heads B and B'l removably secured thereouby screw-threads b. ThiscylinderA is preferably made of brass, and the lower head, B', is cast with a central hole, b', in which the lubricante pipe C is secured by screw-threads. The upper head, B, of the cylinder is furnished with an elongated hub, b2, having a smooth central hole or bearing for the revolving nut D of the screw-stem E, which operates the piston F.

The piston F is preferably composed of two flat circular plates, f". with a rubber disk, f',

between them, and it 1s secured to the end of the screw-stem by the threaded disks or nuts e e', which also serve to compress the disks f f and f' together.

furnished with a shoulder or offset, e2, and the bore of the nut e is smaller than that of the nute. The revolving nut D is furnished with a sleeve, d, which ts in and projects through the 'hole or bearing in the elongated hub b2 of the head B3, and the lower end of this sleeve is turned or riveted over a collar, d', fitting in a channel or offset on the under surface oi' the head B2, so that the nut D may revolve freely, and thus elevate or depress the piston. By this means a tight joint may be secured between the revolving nut and the head B2, while the nut is free to revolve therein. The lubricant-pipe C is provided with an elbow, C', and it should be eightor ten inches in length between the lubricant-vessel and the checkval ve G. This valve G is provided with a stem, y, having crossshaped guides y' g2, one at each end, which travel in the bore ofthe valve- The end. of the stem E isv chamber G and serve to guide the valve cens trally to its seat. The bore at the rear end of the val ve-chamber is threaded'and receives the threaded end of the pipe-section O2, the end of which pipe serves asa shoulder or stop to limit the movement of the valve-guide g. The pipe-section C'l is secured to the'steampipe, and thus supports the lubricator.

To iill the cylinder B with the solid lubricant, the piston is first run up to the top by vice embodying my invention. Fig. 2 is an turning the nut- D, and then the cylinderis ICO unscrewed from the lover head, B', and filled, when it is again inverted and screwed upon the head B. The screw-stem E serves not only to raise and lower the piston by revolution of the nut D, but also to indicate when the lubricant N is exhausted in the vessel or cylinder B.

I claimvolving nut D, journaled in said head B, sub-A stantially'as specid.

2: The combination, with a checkwaive', 0f-Y a lubricantpipe and a lubricant-vessel pro-y vided with awpiston havinga screw-sten) and revolving threaded nut journaled in the head of said lubrieantvessel for operating said screw, whereby said piston may be forced up dtv-secured '-to, `said sleeve d, "speciedt-i or down without communicating any revolving motion thereto or to the operating-screw, substantially as specified.

The combination, witha lubricant vessel orcylinder, B, a piston therefor, and a screwstem secured to said piston, of a revolving threaded nut journaled in the head of said cylinder-for operating said screw-stem, whereby said piston may be forced upordown Without. revolving the piston inthe cylinder or the screw inthe piston, substantially as specified.

4. The combination,with cylinder B,Yhaving heads B' B, said head B2 having ,a hub, b2, of -f piston screw-stem E, revolving nt D, hav ing sleeve tZ-,ijournaledfin said hub, and' collar substantially as Y CHARLES 1 `RIEDERICI.n `Witnesses: i j

' .EDMUND Ancocic,

JEDW. S. lvii'n'rs. 

